Miter-box and calculator.



5 SHEETS-SHEET, l-

Patented Nov.. 2,7', 1.917.

P. E. PARSONS.

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P. E. PARSONS. MTEH BOX AND CALCULATOR. APPLICATION FlLED Nov. 191s.

aten'ted Nove 27, HHK

5 SHEETS-SHEET 2.

P. E. PARSONS.

MITER BOX AND CALCULATOR. APPLfcAnoN FILED Nov. s; 191s.

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Patented Nov. 27, MN?.

5 SHEETS-SHEET 3.

P. E. PARSONS.

MITER BOXAND CALCULATOR.

APPLlcAnoN FILED Nov. a. |916.

Lml. PatentedNv. 27, 1917 5 SHEETSf--SHEET 4- PE. PARSONS. MITER BOX ANDCALCULATOR. APPLlcATIoN HLED Nov. a. |916.

Patnted Nov. 27,191?

5 SHEETS-SHEET 5.

PETER E. PARSONS, OF SALT LAKE CITY, UTAH.

MITER-BOK .AND CALCULATOR.

Specification of Letters Patent.

Patented Nov. WI, i917.

Application filed November 8, 1916. Serial No. 130,211.

To cZZ. ff/wm t may concern.'

Be it known that l, Ferne E. PAnsoNs, a citizen of the United States,residing at Salt. Lake City, in the county of Salt Lake and State ofUtah, have invented certain new and usei'ul improvements in Miter- BoXesand Calculators, of which the following is a specication.

This invention relates to an improved miter boX and calculator and hasas its prmary object to provide a device of this char-` acter adjustableforinaking a miter out at various horizontal angles and independentlyadjustable for making a miter cut at various vertical angles to, ifdesired, impart a bevel to the miter.

rllhe invention has as a further object to provide a device of thischaracter wherein the horizontal angularity of the miter cut will bedetermined simultaneously with the adjustment or the device to make thecut and indicated in degrees oi' a circle and also in terms of theiigures of the commonly employed carpenters steel square.

The invention has as a further object to provide an arrangement whereinAthe vertical angularity oi' the cut will be determined with theadjustment of the device to make the cut, and wherein such angularity ofthe cut will be simultaneously determined and indicated in degrees of acircle aS well as in ter ns of the lfigures ot a carpenters square as inthe instance oir' the horizontal cut.

A still further vobject of the invention is to provide a constructionwherein the diagonal length of the miter cut will be given or indicatedSimultaneously with the adjustment of the device to make the cut.A

The invention has as a still further object to provide an arrangementwherein, in cutting rafters or the like, the pitch of the cut will begiven or indicated upon the adjustment of the device to make the cut.

The invention has as a turther object, as

will be seen in view of the foregoing, to

provide a device of this character wherein, upon being ,given theangularity of a certain miter cut, either in terms of the degrees of acircle or terms oi the figures of a carpenters square, or being giventhe pitch of a certain cut desired, the device may be readily adjustedto make the said cut at the proper angle and at the same time determinethe diagonal length oi' the cut per foot run ott the stock. i

Other and incidental objects will appear as the description proceeds andin the drawings wherein l have illustrated the prefered embodiment ofthe invention and wherein similar reference characters desionatecorresponding parts throughout the several views,

Figure l is a front elevation of my .iniproved device particularlyshowing the manner in which the body of the base or the miter box iscut-away to receive the carriage for the saw lead and guide;

Fig. 2 is a plan view with the saw lead and guide removed andparticularly showing the arrangement of the scale plates cin-- ployedbeneath the bed of the box proper;

Fig. 3 is a horizontal Sectional. view more particularly showing` themanner in which the body of the base is thickened to receive thecarriage tor the saw lead anc guide;

Fig. l is an end elevation particularly illustratingv the mounting ofthe saw lead and guide upon the carriage;

Fig. 5 is a plan view, showing the carriage in detail;

Fig. 6 is a fragmentary sectional view more particularly showing themounting ot the carriage;

Fig. 7 is a perspective view showing the box proper of the devicedetached and illustrating' the adjustable mounting of the back or' renceof the box;

Fig. S `is a detail sectional view particularly illustratingl theadjustable mounting oi' the bed of the box proper;

Fig. 9 is a fragmentary plan view or the scale plates and graduationsthereon;

Fig. l0 is a fragmentary elevation ot the saw lead particularly showingthe manner in which the saw guide is connected thereto, and A Fig. 11 isa plan view showing the saw guide detached.

In carrying out the invention, the device is formed with a base having abody l0 con` nected at its extremities, as particularly shown in Fig. 3,with supporting members or legs ll with the body l0V extendinghorizontally between the said members. Midway between its ends, the bodyl() is cutaway upon the upper side thereof, as shown at l2, seenparticularly in Fig. l, and is provided with a transversely thickenedportion 13 forming a bearing for the carriage of the device. Thiscarriage is best shown in Figs. 5 and 6 of the drawings and includescrossed armsl/i and 15, respectively, arranged at llO substantiallyright angles to each other` rihe arm 14 is solid, while the arm 15 iskbifurcated adjacent its intersection `with the arm 14 to form spacedmembers 1G extending upon opposite sides of the center of the arm 14 andterminating at their outer extremities in bearing sleeves 17 arranged inv 13 of the body 10 and at its lower extremity is equipped with a washer21 and a pin 22 for rotatably connecting 4the carriage with the bodywith the arms 14 and 15 of the carriage received within the cut-awayportion 12 of the body.v A set screw 23 is threaded through the forwardside of the bearing to engage the shaft 2O for holding the shaft atswinging adjustment.

Rotatably fitted through the sleeves 17 of the arm 15 of the carriage toextend transversely through the arm 14 is a horizontal shaft 24 which,at one side of the arm 14, is provided with a stop collar 25 while abeveled pinion 26 is keyed to the said shaft upon the opposite side ofthe said arm. The purpose of this pinion will presently appear. At itsforward extremity, the shaft 24 is squared to receive a hand wheel 27,while the rear extremity of the shaft is formed to receive an upstandingsaw lead or post 28 connected with the said shaft by a nut 29 with asuitable washer 30 interposed between the nut and the post. The post orsaw lead 28, at the upper extremity thereof removably carries anupstanding loop forming spaced arms 31 and slidably mounted upon thesaid arms is a saw guide.

The saw guide includes spaced horizontal arms 32 provided at their innerextremities with mating transversely extending members 33 receivedbetween the arms 31 of the post 28and formed adjacent their upper andlower extremities with lugs or sleeves 34 and 35 respectively,projecting from the outer sides of the said members and slidablylreceiving the arms 31 for slidably connecting the saw guide with thelead 28 with the said saw guide projecting forwardly over lthe body 10.At their outer extremities,` the arms 32 are formed with upstandingmating members 3G and it will now be noted that the saw gnide is formedin sections with each section including one of the arms 32,

upon reference to Fig. 1, the members 33 and 36 are cut-away to slidablysupport `the saw with the saw blade disposed for movement between thearms 32 of the guide, the guide, of course, being adjustable verticallyupon the arms 31 of the lead 28 for either rais ing or lowering the sawwith respect to the body l0.

Mounted upon the body 10 of the base, is a stepped annular platereceiving frame 37 which is received within the cut-away portion 12 ofthe body and is provided at opposite sides thereof with lateral ears 38lying flush with the upper edge of the body and secured to the said bodyby screws or otherV suitable fastening devices for connecting the framewith the body. Mounted within the frame 37 is an annular scale plate 39concentric with the axis of rotation of the carriage previouslydescribed. Fitting loosely within the plate 39, is a similar plate 40and arranged within the plate 40, is a similar plate or disk 41. Theplate 40 is seated upon a plurality of upstanding blocks or lugs 42formed on the arms 14 and 15 of the carriage adjacent the outerextremities thereof with the said plate secured to the said blocks byscrews or other suitable fastening devices.

The plate 41 is carried by a pinion 43 pro vided with an upstandingsquared shank projecting, as particularly shown in Fig. 6, through thesaid plate with the said pinion seating upon the bearing 18 of the arm14 of the carriage and rotatably mounted upon the pin 19. Connecting theplate with the said pinion to rotate therewith is a small disk 44whichreceives a screw or other suitable fastening device 45 threadedinto the pin 19. The purpose of the pinion 26 now becomes apparent sincethis pinion is arranged to co` operate with the pinion 43 and it will beobserved that the plate 39 is fixed with respect tothe carriage, whilethe plate 40 is mounted to move with the carriage. As will' frame 37 tooverlie the plates 39, 40 and 41,`

is a glass or other suitable transparent pane 46 adapted to protect thesaid plates from dirt or from saw-dust falling from the box proper. j

The box proper is mounted upon'the base and includes a bed 47 and asectional back or fence 48 arranged at substantially right anglesthereto. The bed is arranged to extend horizontally Vbetween the endmembers 11 of the base and, as shown in detail in Fig. 8, is providedadjacent opposite extremities thereof with a plurality Yof transverselyspaced sockets 49 adapted to selectively receive pins 50 upstanding,`from the members 11 for adjusting the bed upon the base with respect tothe saw lead. ThisV adjustmentis of advantage' in handling stock ofdifferent sizes. As particularly ioo shown in Fig. 7, the sections ofthe back or fence a8 of the boi: proper are, respectively,

provided adjacent opposite extremities thereof with longitudinallyextending slots 5l which receive suitable pins 5:2 projecting laterallyfrom the rear edge of the bed di' and carrying Wing nuts 53 adjustablyconnecting the sections of the back With the bed. The sections, at theconfronting ends thereof, are cut-aivay in the usual manner to receivethe saw and may be moved with respect to the bed to accommodate the sanfor making different miter cuts.

From the preceding description, it will now be seen that the hand Wheel27 may be grasped to swing the carriage upon the stub shaft 2O in eitherone direction or the other to, accordingly, shift the saw carried by thesaiv guide for making initer cuts at various horizontal angles. lVhenthe carriage is so swung, the beveled pinion 2G Will, through thebeveled pinion d3, act to turn the plate 4l With the carriage. Byrotating the shaft 2st in either one direction or the other, the sawlead 28 may be tilted to, consequently,

tilt the san7 for making miter cuts of various vertical angles and a setscreu7 54 is provided for holding the shaft at adjustment, this setscrew being threaded through the outermost sleeve of the arm 15 of thesaiv guide to engage the said shaft. Accordingly, miter cuts may be madeat various horizontal angles Without respect to the adjustment providedfor tilting the saw to make cuts at vertical angles and miter cuts atvarious vertical angles may be made Without reference to the adjustmentprovided for making the miter cuts at different horizontal angles.However, it Will be noted that the carriage may be adjusted for making amiter cut at a horizontal angle and the shaft 24 operated for tiltingthe saiv lead With respect to the vertical to, consequently, impart abevel to the miter cut, this arrangement being 0f advantage in cuttingrafters and the like. 'In this connection, attention is directed to thefact that When the shaft 24 is rotated to adjust the saw for makingmiter cuts at various vertical angles, the beveled pinion 26 ivill actupon thepinionl to correspondyingly rotate the plate ell with respect tothe plate l0.

Having thus described the mechanical operation of the device, the meansprovided for determining the horizontal and vertical angularity of anyparticular miter cut will noiv be set forth, as Well as the means fordetermining the diagonal length of the cut per foot run of the stock orthe pitch of the cut when cutting` rafters and the like, The plate 39,adjacent its inner margin is, as particularly shown in Fig. 9, providedat opposite sides thereof with radial graduations havin(v at each sideof the plate, oppositely reading` scales A beginning at opposite sidesof a diametric line through the plate. Each of the scales il comprisesthe numbers from l to Q4, reading consecutively, these numbersCorrespendingl to the numbers on the blade of the commonly employedcarpenterls steel square. Arranged immediately about the several scalesA are a plurality of scales B haring graduations associated therewith,corresponding to the Oraduations of the scales A. Each of the scales Bcomprises computations in inches and decimal fractions thereof fordiagonal lengths per foot run of the stock. Arranged around the scalesB, at the outer margin of the plate, are' graduations corresponiling tothe graduations of the scales il and E and having scales C and D,respectively, associated therewith and comprising, at one side of theplate in the scale C, fractional numbers indicating the degree of pitchfor conimon rafters and, the opposite side of the plate in the scale D,fractional numbers indicating the degree of pitch for hip or valleyrafters. rlhe plate d0, adjacent one side thereof, is provided withradia graduations having opposite reading scales E associated therewithand each comprising the numbers from l to 24C, reading consecutively,these numbers correspendingl to the numbers upon number upon the tongueof a carpenters square, and at its diametric opposite side with anothercharacter lvl, preferably constituted by a zero mark. Also, the plates39 and a0 are provided at one side thereof on the diametric line fromWhich the oppositely reading scales of the said plates begin withcharacters I and l respectively, preferably constituted by the doublezero mark on the plate 39 and by the number l2 upon the plate /lO, thenumber l2 also representing` this number on the tongue of a carpenterssquare. The plate l0 is further provided at the side thereof oppositethe character J and on the said diametric line with a character Kpreferably constituted by the number 17 representing this number uponthe tongue of a carpenters square.

Assuming noiv that it is desired to cut a miter of a given horizontalangle and, as an illustration, such angle will be assumed to be 45degrees. To make this cut, the hand Wheel 27 may be grasped and thecarriag'e swung in either one direction or the other, depending upon theVWay it is desired to make the cut upon the stock, until the plate 40assumes a position With the graduation of the scale F reading 45 degreesarranged opposite the character l or the double zero mark upon the plate89. The set screw 23 may then be operated for holding the carriage atadjustment. Movement of the carriage. will, of course, swing the saw tomake theV cut at the angle of adjustment of the carriage. lVith theplate 40 thus adjusted, it Will be noted that the characer J or thenumber 12 will be brought opposite the number 12 on the adjacent scaleA. .'lhus, a miter cut at a horizontal angle of 45 degrees Will bedesignated by the numbers 12 and 12 upon a carpenters square.Consequently, When the carpenter is unfamiliar With the operation ofdetermining the angle by degrees, the present device Will indicate thedesired angle in terms of the figures upon the carpenters square. Havingthus determined the angle of the miter cut, the operator may now consultthe scale C at the graduation opposite the registering graduations ofthe character J and the adjacent scale A, or the registering numbers 12and 12 for determining the pitch of the miter for common rafters, suchpitch in the instance given being one-half pitch with the adjacent scaleB giving the computation of seventeen and sixty-nine hundredths inchesas the diagonal length of the cut per foot run of the stock.

In the event hip or valley rafters are being cut, the adjacent scale Dupon the plate 39 may be consulted at the character K, or the number 17upon the plate 40, for determining the pitch of the cut, such pitch, inthe instance given, being indicated as seventeen twenty-fourths pitchWith the adjacent. scale B upon the plate 39 giving the computation oftwenty-four inches as the diagonal length of the cut per foot run of thestock. ln this connection, it is to be observed that a cut for a hip orvalley rafter at a horizontal angle of 45 degrees will be designated bythe registering numbers 17, or the character K, and the number 17 uponthe adjacent scale A of the plate 39, these numbers corresponding to thesame numbersupon a earpenters square. Consequently, should the carpenterbe unable to ascertain the angle by degrees, the numbers correspondingto the numbers upon the carpenters square could be used for adjustingthe device to make the cut for hip or valley rafters at the said angle.

As Will now be seen, the device may be adjusted in a manner similar tothat above set forth for positioning the savv to make a miter cut at anydesired horizontal angle and When adjusted the scale plates 39 and 40may be consulted for determining the particular angle of suchadjustment, for de-l termining the pitch of the miter either for commonrafters or for hipor valley Vrafters and also determining the diagonallength of the initer cut per foot run of the stock. Also, it will beseen that should only the pitch be given for a desired miter cut, thecarriagepmay be adjustedby means of the several scales A, B, C, D, E andthe characters J and l for positioning the carriage to set the saW tomake ak cut at the desired pitch with the angle of the cut indicated indegrees of a circle, as Well as by the figures of a carpenters square.

Assuming noiv that it is desired to give a vertical inclination toV themiter cut for imparting a bevel to the miter, the hand Wheel 27 isturned to rotate the shaft 24 and, con- A Y sequently, tilt the saw lead28 to incline the saiv. The shaft 24 may, of course,be turned in eitherone direction or the other, depending upon the direction in Which it isdesired to bevel the miter, with the set screw 54 operable for holdingthe said shaft at adjustment. Continuing With the illustration abovegiven With the carriage set for making a miter cut at a horizontalangle. of 45 degrees, it Will be assumed that it is desired to impart abevel to this miter of 33 degrees more or less. Rotation of the shaft 24to tilt the saw Will, as previously explained, simultaneously turn theplate 41 and, to adjust the saw for the vertical angle given, the saidshaft is rotated until the character. H or thezero mark upon the plate41 is brought opposite the graduation reading 33 degrees of the scale Fupon the plate 40. `With the plate 41 so positioned, the saw will beproperly tilted to bevel the miter cut at 33 degrees. However, assumingthat the operator were unfamiliar With determining angles by degrees, itWill be noted that adjustment of the plate 41, as just set forth, wouldbring the character G or the number 12 upon the said plate opposite thenumber 8 upon the adjacent scale E of the plate 40.V Thus, the verticalangle of 33 degrees would be .indicated by the figures 12 and 8 upon thecarpenters square so that the operator could set the saw at the desiredvertical angle by means of these numbers. Thus, the device may beadjusted for making a miter cut at any desired vertical angle and, Vinthe instance given, such cut would be at 45 degrees horizontal angle and33 degrees vertical angle, indicated in the first instance by thenumbers 12 and 12 upon the carpenters square and in the latter instanceby the numbers 12 and 8 upon the carpenters square. Moreover, it will beseen that by consulting the scales upon vthe plates 39, 40 and 41, theadjustment of the carriage or the saW lead required for making a cut ofany desired horizontal or vertical angle may be easily and quicklydetermined.

Having thus described the invention, what is claimed as new is:

l. A device of the character described including a base, a bed carriedthereby, a carriage mounted upon the base, a shaft rotatably mountedupon the carriage, a saw guide connected with the said shaft, `the shaftbeing rotatable for adjusting the saw guide with respect to the verticaland the carriage being adjustable for positioning the saw guidehorizontally with respect to the bed, a scale plate mounted upon thebase in a plane with the carriage and fixedwith respect thereto, asecond scale plate connected to the carriage in a plane with the saidfirst mentioned plate, and a scale plate mounted upon thecarriage toswing in a plane therewith and operatively connected with said shaft foradjustment thereby with respect to the said second mentioned scaleplate, the several scale plates being adapted to coact for determiningthe angularity of the saw guide. i

2. A device of the character described including a base, a carriagerotatably mounted thereon, a bed carried by the base, a saw guidemounted upon the carriage, the carriage being adjustable for positioningthe saw guide horizontally with respect to the bed, an annular scaleplate supported by the base in a plane with the carriage and fixed withrespect thereto, and a scale plate concentric with said first mentionedplate and movable with the carriage in a plane with said first mentionedplate to co-act therewith for determining the horizontal angularity ofadjustment of the saw guide.

3. A device of the character described including a base, a carriagemounted thereon a shaft rotatably mounted upon said carriage, a sawguide connected with said shaft, the shaft being adjustable forpositioning the saw guide with respect to the vertical, a scale platemounted upon the carriage, a second scale plate arranged in a plane withsaid first mentioned plate, and an operative connection between theshaft and said second mentioned scale plate for adjusting the secondmentioned scale plate with respect to the first mentioned scale plate tocoperate therewith for determining the angularity of adjustment of thesaw guide simultaneously with the adjustment of the said saw guide.

t. A device of the character described including a base, a carriagemounted upon the base, a shaft rotatably mounted upon said carriage, abeveled pinion keyed to the said shaft, a beveled pinion meshing withsaid first mentioned pinion and rotatably mounted upon the carriage, asaw guide connected with said shaft, a scale plate mounted upon thecarriage, and a second scale plate connected with `said secondimentioned pinion torotate therewith, the said shaft being operable foradjustably positioning the saw guide with respect to the vertical andsimultaneously rotating said second mentioned scale plate with` respectto said first mentioned scale plate for determining the angularity ofadjustmentofthe saw guide.

5. A deviceof the character described including a base,ia carriagemounted thereon, a frame connected with the base, a bed mounted upon thebase in a plane with the carrier, a saw guide mounted upon the carriageand adjustable with respect to the -vertical thereon, the carriage beingadjustable upon the base `for positioning the saw guide horizontallywith respect to the bed, a scale plate fixed within said frame, a secondscale plate connected with the carriage to swing in a plane therewithand surrounded by said first mentioned plate, and a third scale platemounted upon the carriage and adjustable independently*thereon with saidplate surrounded by said second mentioned plate, the said plates beingadapted to coact for `determining the horizontal and vertical angularityof adjustment of the saw guide.

G. A device of the character described including a base, a carriagemounted thereon, a saw guide adjustable upon the carriage with respectto the vertical, a horizontally arranged scale plate mounted upon thecarriage, means rotatably mounted upon the carriage, a second scaloplate carried by said means in a plane with said first mentioned plate,and means for rotating said first mentioned means for adjustablypositioning said second mentioned scale plate to coact with said firstmentioned plate for determining the vertical angularitj7 of the sawguide.

7. A device of the character described in cluding a base, a carriagerotatably adjustable horizontally thereon and formed with a plurality ofradial arms, a scaleplate mounted upon the base in a plane with thecarriage, a scale plate connected to said armsto swing in a plane withthe carriage and with said first mentioned plate to coact therewith fordetermining the angularity of the horizontal adjustment of the carriage,a shaft mounted upon the carriage, and a saw guide carried by the saidshaft and adjustable thereby with respect to the vertical with the shaftmovable to swing the carriage.

8. A device of-the character described including a base, a carriagemounted thereon and provided with oppositely disposed arms, sleevesformed on said arms, a shaft rotatable in said sleeves, a saw guideconnected to said shaft, the shaft being rotatable for adjusting the sawguide with respect to the vertical, a horizontally arranged scale platemounted upon the car,-

riage, a second scale plate arranged -upon the carriage in a plane withsaid rst mentioned plate and Vconnecting means between the said shaftand said second mentioned plate forV adjusting the said second-mentioned plate with respect to said rst mentioned plate for determiningthe vertical angularity of adjustment of the saw guide upon the'rotation of said shaft.

9. A device of the character described including a base provided withupstanding pins, a carriage mounted upon the base, a saw guide mountedupon the carriage, and

a box proper arranged upon the base andV including a bed having socketsformed therein adapted to selectively receive said pins for adjustingthe box transversely upon the base.

10. A device of the character described including a base, a carriagemounted thereon, a saw guide mounted upon the carriage, a bed arrangedupon the base, a sectional fencearranged to coact with the bed andhaving slots formed therein, and means carried Vby the bed andprojecting through said slots, the said means being operable for.adjusting the sections of the fence longitudinally of the bed. 11. Adevice of the character described including a base, a carriageswingingly mounted upon the base, a shaft rotatable upon the carriage, asaw guide mounted upon the shaft, the shaft being operable forpositioning the saw guide with respect to the vertical and the carriagebeing adjustable for positioning the saw guide horizontally with respectto the base, concentric scale plates arranged in a common plane tocoact. with each other, and connecting means between the said shaft andone of said plates, the plates being movable with respect to each otherupon the rotation of the shaft and the swinging of the carriage fordetermining the horizontal and vertical angularity of the saw guide.

12. A device of the character described including a base, acarriagemounted upon the base, a shaft rotatable upon the carriage, asaw'guide carried by the said shaft, the shaft being rotatable foradjusting the saw guide with respect to the vertical and the carriagebeingadjustable for positioningthe saw guide horizontally with respectto the base, coacting scale plates arranged with certain of the saidplates adjustable with respect to each other simultaneously with theadjustment of the carriage for determining the horizontal angularity ofthe saw guide, and connecting means between the said shaft and anotherofsaid plates for moving the said last-mentioned plate with respect toone of said first-mentioned plates upon the vertical adjustment of thesaw guide for determining the vertical angularity of the saw guide. f

13. A device of the character described including a base, a carriagemounted upon the base, a shaft rotatable upon the carriage, a saw guidemounted upon said shaft, the shaft being rotatablefor adjusting the sawguide with respect to the vertical and the carriage being adjustable forpositioning the saw guide horizontally with respect'to the base, anannular scale plate fixed with respect to the carriage, an annular scaleplate movable with the carriage, Van annular scale plate adjustableindependently of the carriage, and connecting means between the saidshaftand the said last-mentioned. plate, the several platesbeingadaptedto coact for determining the horizontal and verticalangularity of the saw guide.

14. A device of the character described including a base, a carriagemounted thereon, a shaft rotatable upon the carriage, a saw guidemounted upon the said shaft, a

scale plate, a second scale plate arranged to' coact with saidfirst-mentioned plate, and connecting means between the shaft and saidsecond-mentioned plate, the shaft being rotatable for adjusting the sawguide with respect to the vertical and shifting the said plates withrespect to each other forcdetermining the vertical angularity ofadjustment of the saw guide. j

15. A device of the character described including a base, a carriagemounted to swing thereon, a shaft rotatable upon the carriage, a sawguide mounted Aupon said shaft, a pluralityV of concentric coactingscale plates, and connecting means betweenV the said shaft and one ofsaid plates, the carriage and the said shaft being rotatable foradjustingthe saw guide in horizontal and Vvertical planes respectivelywith the plates adapted to coact for determining the horizontal andvertical angularity of adjustment of the saw guide.

In testimony whereof l aiiix my signature.

PETER E. PARSONS. [Ls] Copies of this patent may be obtained for vecents each, by addressing the Commissioner of Eatents,

Washington. D. C.

